gas independent of temperature те mo -2.29 Calculate the standard enthalpy of formation of methane at 1000 K from the value at 298.15 K using the H-H298 in Table C.3. data 2.30 For a diatomic molecule the bond energy is equal to the Cs(s) Cs+ (ao) 0 -258.28 -292.02 133.05 -10.5 Table C.3 Chemical Thermodynamic Properties at Several Temperatures and 1 bara CP So H-H Hi - H 298 AfH° AG° T/K JK-1 mol-1 JK-1 mol-1 kJ mol-1 kJ mol-1 kJ mol-1 C (graphite) 0 298 0.000 0.000 -1.051 0.000 0.000 8.517 5.740 0.000 0.000 0.000 (continued) a M. Chase et al., JANAF Thermochemical Tables, 3rd ed., J. Phys. Chem. Ref. Data 14, Supplements 1 and 2 (1985). The values on hydrocarbons, other than CH4, are from D. R. Stull, E. F. Westrum, and G. C. Sinke, The Chemical Thermodynamics of Organic Compounds. Hoboken, NJ: Wiley, 1969. Table C.3 (continued) Tables of Physical Chemical Data H-H 298 A1° A,G° T/K JK mol JK mol kJ mol-1 kJ mol kJ mol 500 14.623 11.662 2.365 0.000 0.000 1000 21.610 24.457 11.795 0.000 0.000 2000 24.094 40.771 35.525 0.000 0.000 3000 26.611 51.253 61.427 0.000 0.000 C(g) 0 0.000 0.000 -6.536 711.185 711.185 298 20.838 158.100 0.000 716.670 671.244 500 20.804 168.863 4.202 718.507 639.906 1000 20.791 183.278 14.600 719.475 560.654 2000 20.952 197.713 35.433 716.577 402.694 3000 21.621 206.322 56.689 711.932 246.723 CH₁(g) 0 0.000 0.000 -10.024 -66.911 -66.911 298 35.639 186.251 0.000 -74.873 -50.768 500 46.342 207.014 8.200 -80.802 -32.741 1000 71.795 247.549 38.179 -89.849 19.492 2000 94.399 305.853 123.592 -92.709 130.802 3000 101.389 345.690 222.076 -91.705 242.332 CO(g) 0 0.000 0.000 -8.671 -113.805 -113.805 298 29.142 197.653 0.000 -110.527 -137.163 500 29.794 212.831 5.931 -110.003 -155.414 1000 33.183 234.538 21.690 -111.983 -200.275 2000 36.250 258.714 56.744 -118.896 -286.034 3000 37.217 273.605 93.504 -127.457 -367.816 CO2(g) 0 0.000 0.000 -9.364 -393.151 -393.151 298 37.129 213.795 0.000 -393.522 -394.389 500 44.627 234.901 8.305 -393.666 -394.939 1000 54.308 269.299 33.397 -394.623 -395.886 2000 60.350 309.293 91.439 -396.784 -396.333 3000 62.229 334.169 152.852 -400.111 -395.461 C₂H₁(g) 0 0.000 0.000 -10.518 60.986 60.986 298 43.886 219.330 0.000 52.467 68.421 500 63.477 246.215 10.668 46.641 80.933 1000 93.899 300.408 50.665 38.183 119.122 C₂H6(g) 298 52.63 229.60 0.00 -84.68 -32.86 500 78.07 262.91 13.22 -93.89 4.96 1000 122.72 332.28 64.56 -105.77 109.55 CH₁o(g, n-butane) 298 97.45 310.23 0.00 -126.15 -17.02 500 147.86 372.90 24.94 -140.21 61.10 1000 226.86 502.86 120.96 -155.85 270.31 (continued) 875 876 Appendix C Tables of Physical Chemical Data Table C3 (continued) AH AG TK JK 'mol! JK 'mol kJ mol kJ mol kJ mol CH.(g) 81.67 269.31 0.00 82.93 298 325.42 22.43 500 137.24 73.39 129.73 209.87 446.71 112.01 62.01 164.29 1000 CH,OH(g) 260.76 43.89 239.81 0.00 -201.17 298 59.50 266.13 10.42 -207.94 -162.46 500 89.45 317.59 48.41 -217.28 -134.27 1000 Cl(g) -56.16 0 0.000 0.000 -6.272 119.621 21.838 165.189 0.000 121.302 119.621 298 22.744 176.752 4.522 105.306 122.272 500 1000 22.233 192.430 15.815 94.203 124.334 2000 21.341 207.505 37.512 127.058 65.288 3000 21.063 216.096 58.690 128.649 5.081 -56.297 HCl(g) 0 0.000 0.000 -8.640 -92.127 -92.127 298 29.136 186.901 0.000 -92.312 500 29.304 201.989 5.892 -95.300 -92.913 -97.166 1000 31.628 222.903 21.046 -94.388 -100.799 2000 35.600 246.246 54.953 -95.590 -106.631 3000 37.243 261.033 91.478 -96.547 -111.968 Cl₂(g) 0 0.000 0.000 -9.180 0.000 0.000 298 33.949 223.079 0.000 0.000 0.000 500 36.064 241.228 7.104 0.000 0.000 1000 37.438 266.764 25.565 0.000 0.000 2000 38.428 293.033 63.512 0.000 0.000 3000 40.075 308.894 102.686 0.000 0.000 H(g) 0 0.000 0.000 -6.197 216.035 216.035 298 20.786 114.716 0.000 217.999 203.278 500 20.786 125.463 4.196 219.254 192.957 1000 20.786 139.871 14.589 222.248 165.485 2000 20.786 154.278 35.375 226.898 106.760 3000 20.786 162.706 56.161 229.790 46.007 H* (g) 0 0.000 0.000 298 -6.197 1528.085 20.786 108.946 500 0.000 1536.246 1516.990 20.786 1000 119.693 4.196 1541.697 1502.422 20.786 2000 134.101 14.589 1555.084 1457.958 20.786 3000 148.509 20.786 35.375 1580.520 1350.840 156.937 56.161 1604.198 1230.818 (continued) Table (continued) C Tables of Physical Chemical Data T/K JK- mol-1 JK mol-1 H-H AH° A,G° kJ mol kJ mol 0 kJ mol 0.000 H (g) 298 20.786 0.000 500 20.786 108.960 -6.197 1000 20.786 119.707 0.000 143.266 139.032 2000 20.786 134.114 4.196 132.282 136.091 3000 20.786 148.522 14.589 128.535 128.692 156.950 32.375 123.819 112.557 56.161 125.012 94.662 135.055 0 0.000 HI(g) 298 29.156 0.000 500 29.736 206.589 -8.656 28.535 28.535 1000 33.135 221.760 0.000 26.359 1.560 2000 243.404 5.928 -5.622 -10.088 36.623 267.680 21.641 -6.754 -14.006 3000 37.918 56.863 282.805 -7.589 -21.009 94.210 -10.489 -27.114 H2(g) 0 0.000 0.000 298 28.836 -8.467 0.000 0.000 130.680 0.000 500 29.260 0.000 0.000 145.737 5.883 0.000 1000 30.205 0.000 166.216 20.680 0.000 0.000 2000 34.280 188.418 52.951 0.000 0.000 3000 37.087 202.891 88.740 0.000 0.000 H₂O(g) 0.000 0.000 -9.904 -238.921 -238.921 298 33.590 188.834 0.000 -241.826 -228.582 500 35.226 206.534 6.925 -243.826 -219.051 1000 41.268 232.738 26.000 -247.857 -192.590 2000 51.180 264.769 72.790 -251.575 -135.528 3000 55.748 286.504 126.549 -253.024 -77.163 I(g) 0 0.000 0.000 -6.197 107.164 107.164 298 20.786 180.786 0.000 106.762 70.174 500 20.786 191.533 4.196 75.990 50.203 1000 20.795 205.942 14.589 76.937 24.039 2000 21.308 220.461 35.566 77.992 -29.410 3000 22.191 229.274 57.332 77.406 -82.995 12(g) 0.000 -10.116 65.504 65.504 0.000 0.000 62.421 19.325 260.685 298 36.887 7.515 0.000 0.000 279.920 500 37.464 26.407 0.000 0.000 306.087 1000 38.081 66.250 0.000 0.000 332.521 2000 42.748 110.955 0.000 0.000 351.615 3000 44.897 (continued) 78 Appendix C Tables of Physical Chemical Data Table C.3 (continued) H-H298 ΔΗ C A,G° JK mol-1 JK-1 mol 1 kJ mol-1 kJ mol kJ mol T/K N(g) 0.000 -6.197 0.000 470.820 0 20.786 153.300 0.000 472.683 470.820 298 20.786 164.047 4.196 473.923 455.540 500 178.454 14.589 20.786 476.540 443.584 1000 20.790 192.863 35.375 479.990 412.171 2000 201.311 56.218 346.339 482.543 20.963 3000 278.946 NO(g) 0.000 -9.192 0.000 89.775 0 89.775 29.845 210.758 0.000 90.291 298 86.606 500 30.486 226.263 6.059 90.352 84.079 33.987 248.536 22.229 90.437 1000 77.775 36.647 273.128 57.859 90.494 2000 65.060 288.165 94.973 3000 37.466 89.899 52.439 NO₂(g) 0 0.000 0.000 -10.186 35.927 35.927 298 36.974 240.034 0.000 33.095 51.258 500 43.206 260.638 8.099 32.154 63.867 1000 52.166 293.889 32.344 32.005 95.779 2000 56.441 331.788 87.259 33.111 159.106 3000 57.394 354.889 144.267 32.992 222.058 N2(g) 0 0.000 0.000 -8.670 0.000 0.000 298 29.124 191.609 0.000 0.000 0.000 500 29.580 206.739 5.911 0.000 0.000 1000 32.697 228.170 21.463 0.000 0.000 2000 35.971 252.074 56.137 0.000 0.000 3000 37.030 266.891 92.715 0.000 0.000 N₂O4(g) 0 0.000 0.000 -16.398 18.718 18.718 298 77.256 304.376 0.000 500 9.079 97,787 97.204 349.446 1000 17.769 8.769 158.109 119.208 2000 425.106 72.978 15.189 305.410 129.030 3000 511.743 198.518 33.110 588,764 131.200 564.555 328.840 49.178 862.983 0 NH3(g) 298 0.000 500 35.652 0.000 -10.045 -38.907 -38.907 1000 42.048 192.774 0.000 -45.898 -16.367 2000 56.491 212.659 7.819 -49.857 4.800 3000 72.833 246.486 32.637 -55.013 61.910 78.902 291.525 98.561 -54.833 179.447 322.409 174.933 -50.433 295.689 (continued) Table C.3 (continued) Tables of Physical Chemical C T/K JK-1 mol-1 Hi-H JK-1 AH A,G mol-1 kJ mol-1 kJ mol kJ mol 0 0.000 O(g) 298 21.911 0.000 500 21.257 161.058 -6.725 246.790 246.790 1000 20.915 172.197 0.000 249.173 231.736 2000 20.826 186.790 4.343 250.474 219.549 3000 20.937 201.247 14.860 252.682 187.681 209.704 35.713 255.299 121.552 56.574 256.741 54.327 0 0.000 O(g) 0.000 298 21.692 -6.571 157.790 105.814 105.814 500 21.184 0.000 101.846 91.638 168.860 4.318 98.926 1000 20.899 85.532 183.426 14.817 2000 20.816 90.723 75.219 197.878 35.661 72.545 66.619 3000 20.800 206.314 56.467 53.146 67.810 O2(g) 0.000 0.000 -8.683 0.000 0.000 298 29.376 205.147 0.000 0.000 0.000 500 31.091 220.693 6.084 0.000 0.000 1000 34.870 243.578 22.703 0.000 0.000 2000 37.741 268.748 59.175 0.000 0.000 3000 39.884 284.466 98.013 0.000 0.000 e¯(g) 0.000 0.000 -6.197 0.000 0.000 298 20.786 20.979 0.000 0.000 0.000 500 20.786 31.725 4.196 0.000 0.000 1000 20.786 46.133 14.584 0.000 0.000 2000 20.786 60.541 35.375 0.000 0.000 3000 20.786 68.969 56.161 0.000 0.000 Table C.4 Ion Product of Water at a Series of Temperatures °C Kw X 1014 °C Kw X 1014 0 0.114 35 2.09 5 0.185 40 2.92 10 0.292 45 4.02 15 0.450 50 5.47 20 0.681 55 7.20 1.006 60 9.61 25 30 1.47